Kaspersky has fixed a security issue in Kaspersky Anti-Virus SDK for Windows, Kaspersky Security for Virtualization Light Agent, Kaspersky Endpoint Security for Windows, Kaspersky Small Office Security, Kaspersky for Windows (Standard, Plus, Premium), Kaspersky Free, Kaspersky Anti-Virus, Kaspersky Internet Security, Kaspersky Security Cloud, Kaspersky Safe Kids, Kaspersky Anti-Ransomware Tool that could allow an authenticated attacker to write data to a limited area outside the allocated kernel memory buffer. The fix was installed automatically for all Kaspersky Endpoint products.

The TAR file parser in Avira AntiVir 7.11.1.163, Antiy Labs AVL SDK 2.0.3.7, Quick Heal (aka Cat QuickHeal) 11.00, Emsisoft Anti-Malware 5.1.0.1, Fortinet Antivirus 4.2.254.0, Ikarus Virus Utilities T3 Command Line Scanner 1.1.97.0, Jiangmin Antivirus 13.0.900, Kaspersky Anti-Virus 7.0.0.125, McAfee Anti-Virus Scanning Engine 5.400.0.1158, McAfee Gateway (formerly Webwasher) 2010.1C, NOD32 Antivirus 5795, Norman Antivirus 6.06.12, PC Tools AntiVirus 7.0.3.5, AVEngine 20101.3.0.103 in Symantec Endpoint Protection 11, Trend Micro AntiVirus 9.120.0.1004, and Trend Micro HouseCall 9.120.0.1004 allows remote attackers to bypass malware detection via a POSIX TAR file with an initial \50\4B\03\04 character sequence. NOTE: this may later be SPLIT into multiple CVEs if additional information is published showing that the error occurred independently in different TAR parser implementations.

The TAR file parser in Quick Heal (aka Cat QuickHeal) 11.00, Command Antivirus 5.2.11.5, F-Prot Antivirus 4.6.2.117, Fortinet Antivirus 4.2.254.0, K7 AntiVirus 9.77.3565, Kaspersky Anti-Virus 7.0.0.125, Antimalware Engine 1.1.6402.0 in Microsoft Security Essentials 2.0, NOD32 Antivirus 5795, Norman Antivirus 6.06.12, Panda Antivirus 10.0.2.7, and Rising Antivirus 22.83.00.03 allows remote attackers to bypass malware detection via a POSIX TAR file with an initial \7fELF character sequence. NOTE: this may later be SPLIT into multiple CVEs if additional information is published showing that the error occurred independently in different TAR parser implementations.

Kaspersky Anti-Virus 5.0 (5.0.712); Antivirus Personal 5.0.x; Anti-Virus 6.0 (6.0.3.837), 7 (7.0.1.325), 2009 (8.0.0.x), and 2010 (9.0.0.463); and Internet Security 7 (7.0.1.325), 2009 (8.0.0.x), and 2010 (9.0.0.463); use weak permissions (Everyone:Full Control) for the BASES directory, which allows local users to gain SYSTEM privileges by replacing an executable or DLL with a Trojan horse.

kl1.sys in Kaspersky Anti-Virus 2010 9.0.0.463, and possibly other versions before 9.0.0.736, does not properly validate input to IOCTL 0x0022c008, which allows local users to cause a denial of service (system crash) via IOCTL requests using crafted kernel addresses that trigger memory corruption, possibly related to klavemu.kdl.

avp.exe in Kaspersky Internet Security 9.0.0.459 and Anti-Virus 9.0.0.463 allows remote attackers to cause a denial of service (CPU consumption and network connectivity loss) via an HTTP URL request that contains a large number of dot "." characters.

Unspecified vulnerability in Kaspersky Anti-Virus 2010 and Kaspersky Internet Security 2010 before Critical Fix 9.0.0.463 allows remote attackers to disable the Kaspersky application via unknown attack vectors unrelated to "an external script."

Stack-based buffer overflow in kl1.sys in Kaspersky Anti-Virus 6.0 and 7.0 and Internet Security 6.0 and 7.0 allows local users to gain privileges via an IOCTL 0x800520e8 call.